GSM Series

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GSM Series Travel Options PF = RB = AR = XT = Preloaded Follower This option offers a true zero backlash follower for the GSM Series actuator. The dynamic load rating of zero backlash, preloaded screws is 63% of the dynamic load rating of the standard non-preloaded screws. The calculated travel life of a preloaded screw will be 25% of the calculated travel life of the same size and lead of a non-preloaded screw for the same application. Preloaded follower is not available with LT Linear feedback option. Rear Electic Brake This option provides an internal holding brake for the GSM Series actuators. The brake is spring activated and electrically released. External Anti-rotate Assembly This option provides a rod and bushing to restrict the actuator rod from rotating when the load is not held by another method. Shorter actuators have single sided anti-rotation attachments. Longer lengths require attachments on both sides for proper operation. Special Travel Option Selections The XT Option can be used to specify various special travel options on the GSM Series of Linear Actuators. Because this option can be used to specify many things, it is important that an order including the -XT option spell out in detail, the exact options being selected by the including of the -XT in the model number. It is recommended that prior to ordering an actuator including the -XT specifier that a quote be obtained through Exlar’s special products application engineers for the desired options, and that quote be referenced on, or included with any order placed. GSM Series Descriptions: Protective Bellows High Temp Protective Bellows Splined Main Rod This option provides an accordion style protective bellows to protect the main actuator rod from damage due to abrasives or other contaminants in the environment in which the actuator must survive. The standard material of this bellows is S2 Neoprene Coated Nylon, Sewn Construction. This standard bellows is rated for environmental temperatures of -40 to 250 degrees F. Longer strokes may require the main rod of the actuator to be extended beyond standard length. Consult Exlar applications engineers for details. This option provides an accordion style protective bellows to protect the main actuator rod from damage due to abrasives or other contaminants in the environment in which the actuator must survive. The high temperature material of this bellows is D1 Teflon Coated Fiberglass, Sewn Construction. This standard bellows is rated for environmental temperatures of -67 to 500 degrees F. Longer strokes may require the main rod of the actuator to be extended beyond standard length. Consult Exlar applications engineers for details. This option provides a main rod manufactured of ball spline shafting, and the front seal and bushing assembly replaced with a ball spline nut to provide the anti-rotate function without using an external mechanism. Rod diameters are the closest metric equivalents to standard Exlar rod sizes. This option is NOT sealed in any way. This option is not suitable for any environment in which contaminants come in contact with the actuator, and may enter the actuator. L1, L2, L3 = Adjustable External Travel Switches This option allows up to 3 external switches to be included with the GSM Series Actuator. These switches provide travel indication to the controller and are adjustable. See drawing on page 53. Must purchase external anti-rotate with this option. XL = Non-Standard Lubrication This option provides for indication in the model number that the customer has specified a lubrication other than the standard provided by Exlar. 952.368.3434 • Exlar Corporation 47
Motor Speed Designators All Exlar T-LAM motors and actuators carry a standard motor speed designator as defined below. This is representative of the standard base speed of the motor, for the selected bus voltage. Designator Base Speed Actuator/Motor Series -50 5000 rpm GSM20 -30 3000 rpm GSM30/GSM40 01-99 Special Speed, Consult Exlar If the model number is created and the location for the motor speed designator is left blank, this is the base speed to which each motor will be manufactured. The model number can also be created including this standard speed designator. Exlar also provides the flexibility to manufacture all of its T-LAM products with special base speeds to match the customer’s exact application requirements. This may be a higher than standard speed motor, or lower base speed than standard which will allow the customer to get the required torque, at a speed optimized to their application, and use the minimum amount of current from their amplifier. The call out for a special speed is configured in the model number by using a two digit code from 01-99. These numbers represent the number, in hundreds, of RPM that will be the base speed for the particular motor. For example, an GSM30-0301-BSA-EM3-138-30 motor that normally has a 3000 rpm standard winding, can be changed to a 3300 rpm winding by changing the -30, to a -33. It can be changed to a 5000 rpm winding by changing the -30 to a -50. Changing this speed designator will change the ratings of the motor, and these must be obtained from Exlar applications engineers. Also, it is not possible to produce every possible speed from -01 to -99 for each motor at each voltage so please contact Exlar applications engineers for confirmation of the speed that is desired for the application. Feedback Options LT = ICT including conditioner This option provides for an actuator containing an internally mounted ICT transducer spanning the full stroke of the actuator. Inquire with Exlar engineering for details and conditioner output preference. LT is not available with absolute feedback. Due to the variability in size of some feedback devices, especially absolute feedback devices which are often very large relative to the size of the actuator motor, the actual size of the actuator may differ in length and width from these drawings for feedback types other than standard resolvers and standard encoders. Please consult Exlar for details. In the event that you order an actuator that differs from these standard dimensions, you will be sent a drawing of the final configuration of your actuator for approval. Motor Options GSM motor options are described with a 3 digit code. The first digit calls out the stack length, the second the rated bus voltage, and the third the number of poles of the motor. Refer to the mechanical/ electrical specifications for motor torque and actuator rated force. 118 = 1 stack, 115 Vrms, 8 Pole, Class 180 H 138 = 1 stack, 230 Vrms, 8 Pole, Class 180 H 158 = 1 stack, 400 Vrms, 8 Pole, Class 180 H 168 = 1 stack, 460 Vrms, 8 Pole, Class 180 H 218 = 2 stack, 115 Vrms, 8 Pole, Class 180 H 238 = 2 stack, 230 Vrms, 8 Pole, Class 180 H 258 = 2 stack, 400 Vrms, 8 Pole, Class 180 H 268 = 2 stack, 460 Vrms, 8 Pole, Class 180 Note: 3 stack not available in GSM Series Rod End Attachments Rear Clevis Pin Spherical Rod Eye Rod Eye Rod Clevis See drawings on pages 52-53. Attachments ordered separate from actuator. Housing Options P5 = IP65 Sealing Option HC = Type III Hard Coat Anodized, Class 1 This option provides an actuator with type III hard coat anodized coating. Class 1, no dye. XH = Special Housing Option Any housing option that is not designated by the above codes should be listed as XH and described at time of order. All special options must be discussed with Exlar engineering. 48 Exlar Corporation • 952.368.3434
Page 1 and 2: GSM Series - Excellent Ball Screw R
Page 3 and 4: GSM Series Performance and Life Cur
Page 5 and 6: GSM20 & GSM30 Performance Specifica
Page 7 and 8: GSM20 Series Mechanical / Electrica
Page 9: GSM40 Series Mechanical / Electrica
Page 13 and 14: GSM30, Double Side Mounts or Extend
Page 15 and 16: D D D F D D F F D H D Actuator Rod
Page 17 and 18: GSM Series Ordering Information AA

GSM Series

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